Shin Megami Tensei IV Fusion Calculator

Unlock the ultimate demon combinations in SMT IV.

SMT IV Fusion Calculator

Use this calculator to find out what demons you can create by fusing two existing demons in Shin Megami Tensei IV. Select the race and level of your two parent demons to see the potential results.

Fusion Data Table

A reference table showing common fusion results based on race. Note that specific level ranges and special fusions may apply.

Common SMT IV Fusion Results

Parent Race 1	Parent Race 2	Resulting Race	Example Resulting Demon (Level Range)
Fairy	Beast	Yoma	Jack Frost (10-15)
Fairy	Yoma	Sprite	Pixie (1-5)
Beast	Yoma	Wilder	Legion (12-18)
Holy	Fallen	Tyrant	Berith (8-12)
Holy	Holy	Holy	Angel (14-19)
Fallen	Fallen	Fallen	Hua Po (6-10)
Dragon	Dragon	Dragon	Jormungandr (40-48)
Element	Element	Element	Poisontox (18-25)
Hydra	Hydra	Hydra	Orochi (22-28)
Jelly	Jelly	Jelly	Gell Ogres (25-30)
Kishin	Kishin	Kishin	Vasuki (30-36)
Killer	Killer	Killer	Mot (55-60)
Night	Night	Night	Koumokuten (35-40)
Plant	Plant	Plant	Pabilsag (20-26)
Raptor	Raptor	Raptor	Quetzalcoatl (45-52)
Serpent	Serpent	Serpent	Drakken (28-34)
Sky	Sky	Sky	Gargoyle (16-22)
Undead	Undead	Undead	Ghoul (8-14)
Wilder	Wilder	Wilder	Onmoraki (10-16)
Witch	Witch	Witch	Hecate (24-30)
Yoma	Yoma	Yoma	Naga (5-9)
Fairy	Element	Sprite	Ame-no-Uzume (10-15)
Beast	Dragon	Serpent	Nue (15-20)
Vile	Fiend	Vile	Special Fusion

Fusion Outcome Chart

Visual representation of how demon races combine to form other races. This chart simplifies the complex SMT IV fusion system.

The chart displays the probability distribution of resulting demon races when fusing two parent demons of specific races. Darker shades indicate higher probabilities for a given race combination. Actual results depend on the specific demons and their levels.

Understanding Shin Megami Tensei IV Fusions

What is Shin Megami Tensei IV Fusion?

Shin Megami Tensei IV fusion is a core gameplay mechanic that allows players to combine two demons to create a new, often more powerful, demon. This process is crucial for building an effective demon party capable of tackling the game’s challenging encounters. The fusion system in SMT IV is intricate, involving demon races, levels, and specific fusion formulas that dictate the outcome. Understanding how to optimize fusions can significantly impact your progression through the game, allowing you to recruit or create demons with desirable skills, resistances, and stats.

This calculator is for any player of Shin Megami Tensei IV, from newcomers to series veterans, who wants to streamline the process of discovering new demon combinations. It helps in planning your demon acquisition strategy, especially when aiming to inherit specific skills or create demons with optimal elemental affinities. Common misconceptions include believing that any two demons can create any other demon, or that fusion is purely random; the reality is a structured system with predictable outcomes given the correct inputs.

Shin Megami Tensei IV Fusion Formula and Mathematical Explanation

The fundamental SMT IV fusion formula is designed to combine two compatible demons into a new one. While the game’s internal logic is complex and proprietary, we can model the outcome based on observed patterns and game mechanics. The basic principle involves averaging the levels of the two parent demons and determining the resulting demon’s race and base stats from a predefined fusion chart.

Formula for Resulting Level:

Resulting Level = ceil((Demon 1 Level + Demon 2 Level) / 2)

Where ceil() denotes the ceiling function, rounding up to the nearest whole number.

The resulting demon’s race is determined by a specific set of rules based on the races of the two parent demons. There are hundreds of possible race combinations, each leading to a specific ‘Resulting Race’. Additionally, certain race pairings may trigger ‘Special Fusions’, resulting in unique or powerful demons that bypass the standard race-based outcome.

Variables Table

Fusion Variables

Variable	Meaning	Unit	Typical Range
Demon 1 Race	The race of the first parent demon.	Race Category	Fairy, Beast, Vile, Dragon, etc.
Demon 1 Level	The level of the first parent demon.	Integer	1 – 99
Demon 2 Race	The race of the second parent demon.	Race Category	Fairy, Beast, Vile, Dragon, etc.
Demon 2 Level	The level of the second parent demon.	Integer	1 – 99
Resulting Race	The race of the demon created through fusion.	Race Category	Determined by parent races
Resulting Level	The level of the demon created through fusion.	Integer	Calculated based on parent levels
Fusion Type	Indicates if the fusion is standard or special.	Type	Standard / Special

Practical Examples (Real-World Use Cases)

Let’s illustrate with some practical fusion examples in Shin Megami Tensei IV:

Example 1: Creating a Stronger Fairy

Scenario: You have a low-level Pixie (Race: Fairy, Level: 3) and want to fuse it with another demon to get a stronger Fairy-type demon.

Inputs:

• Demon 1 Race: Fairy
• Demon 1 Level: 3
• Demon 2 Race: Yoma
• Demon 2 Level: 7

Calculation:

• Resulting Level = ceil((3 + 7) / 2) = ceil(10 / 2) = 5
• Based on the fusion chart, Fairy + Yoma typically results in a Sprite race.
• A common Sprite demon around level 5 is a higher-level Pixie or an Ame-no-Uzume.

Output:

• Resulting Demon: Ame-no-Uzume (example)
• Resulting Race: Sprite
• Resulting Level: 5

Interpretation: This fusion allows you to get a demon of the Sprite race, which is a higher-tier Fairy lineage, with a level derived from the parents. This is useful for building a more capable magic-user.

Example 2: Attempting a Special Fusion

Scenario: You are trying to obtain a powerful demon like Alice, which requires a special fusion combination.

Inputs:

• Demon 1 Race: Vile
• Demon 1 Level: 50
• Demon 2 Race: Fiend
• Demon 2 Level: 55

Calculation:

• Resulting Level = ceil((50 + 55) / 2) = ceil(105 / 2) = 53
• The combination of Vile and Fiend races can sometimes lead to Special Fusions, depending on the specific demons and their order. In SMT IV, this combination is often part of the path to obtaining demons like Alice, assuming the correct individual demons are used as base.

Output:

• Resulting Demon: Alice (example, if specific conditions met)
• Resulting Race: Vile (or Special)
• Resulting Level: 53

Interpretation: Special fusions are key to acquiring some of the most powerful demons in the game. This example highlights that while race and level are factors, the specific demon identities within those races are critical for unlocking these unique outcomes. This calculator helps identify potential results, but players should consult detailed fusion guides for precise special fusion requirements.

How to Use This Shin Megami Tensei IV Fusion Calculator

Using our Shin Megami Tensei IV Fusion Calculator is straightforward. Follow these steps to discover your next demon combination:

1. Select Demon 1 Race: Choose the race of your first parent demon from the dropdown menu.
2. Enter Demon 1 Level: Input the level of the first parent demon. Levels must be between 1 and 99.
3. Select Demon 2 Race: Choose the race of your second parent demon from the dropdown menu.
4. Enter Demon 2 Level: Input the level of the second parent demon. Levels must be between 1 and 99.
5. Calculate Fusion: Click the “Calculate Fusion” button.

Reading Results:

• Fusion Result: Displays the name of a potential demon you can create. This is a representative outcome based on the chosen races and levels.
• Result Race: Shows the race of the resulting demon.
• Result Level: Indicates the calculated level of the resulting demon.
• Fusion Type: Will specify if the fusion is a ‘Standard’ fusion or a ‘Special’ fusion, which may yield unique demons.

Decision-Making Guidance: Use the results to decide which demons to fuse to create a demon with specific skills, resistances, or to fill a gap in your party. If the primary result isn’t what you’re looking for, try adjusting the levels or swapping the parent demons’ races to explore other possibilities. Remember that the calculator provides a likely outcome; the specific demon available through fusion also depends on the exact demons you possess.

Key Factors That Affect Shin Megami Tensei IV Fusion Results

Several factors contribute to the outcome of a demon fusion in Shin Megami Tensei IV, extending beyond just the races and levels entered into this calculator:

1. Specific Demon Identities: While race and level are primary inputs, the actual demons you select to fuse matter immensely. Certain combinations of specific demons within compatible races can trigger special fusions or yield specific outcomes not covered by generic race-to-race charts.
2. Demon Level Range: The calculator determines a resulting level, but the specific demons available for fusion within a given race often have their own level constraints. You can only fuse demons you have already recruited or fought.
3. Fusion Order: In some RPGs, the order in which you select the parent demons can matter for fusion results. While SMT IV primarily relies on race and level, subtle variations might exist, though this calculator treats both inputs symmetrically.
4. Special Fusion Requirements: Some of the most powerful demons in SMT IV can only be obtained through Special Fusions. These often involve specific, high-level demons across different races or completing certain story objectives. This calculator identifies the *potential* for a special fusion.
5. Skill Inheritance: While not directly calculated here, fusions are also about inheriting skills. Players often choose parent demons specifically for the skills they possess to pass down to the resulting demon.
6. Demon Compendium: The Demon Compendium allows players to re-summon previously registered demons. This is crucial for planning fusions, as it ensures you can readily access necessary parent demons without needing to find them in the field again.

Frequently Asked Questions (FAQ)

Q1: Can I fuse any two demons together?

A1: Not all demons can be fused together. Compatibility is generally determined by their races. Certain race combinations will result in predictable outcomes, while others may not be possible or might lead to special fusions.

Q2: What is a ‘Special Fusion’?

A2: A Special Fusion is a unique fusion process that results in specific, often very powerful, demons that cannot be obtained through standard race-based fusion. These usually require specific combinations of demons regardless of their base race, or unique catalysts.

Q3: How is the resulting demon’s level determined?

A3: The resulting demon’s level is typically calculated by averaging the levels of the two parent demons and rounding up to the nearest whole number.

Q4: Can I get a specific demon I want using this calculator?

A4: This calculator predicts the *race* and *level* of a resulting demon. The specific demon within that race depends on the exact demons you fuse and the game’s internal tables. For precise demon acquisition, refer to detailed SMT IV fusion guides.

Q5: What happens if I input the same race for both parents?

A5: Fusing two demons of the same race will typically result in another demon of that same race, often a stronger variant or a higher-level member of that lineage.

Q6: Does the order of fusion matter?

A6: For standard fusions in SMT IV, the order of selecting parent demons generally does not affect the resulting demon’s race or level. However, for some special fusions, order might be a critical factor.

Q7: How do I inherit skills during fusion?

A7: When fusing, you are usually presented with a choice of skills from the parent demons to pass on to the new demon. You must strategically select the skills you wish to inherit.

Q8: Is this calculator accurate for all SMT games?

A8: This calculator is specifically designed for Shin Megami Tensei IV. Fusion mechanics can vary significantly between different games in the series, so its results may not apply to other SMT titles or spin-offs.

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